Graphene is a kind of Cinderella material: it was there all along, but nobody noticed it.
石墨烯是一种灰姑娘材料：它一直存在，但没有人注意到它。
Every book is a door to another world.
The mining industry must evolve to meet the demands of a changing world.
Understanding the genetic code has opened up new avenues for medical research and biotechnology.
"The way to get started is to quit talking and begin doing."
对复杂系统的研究告诉我们，简单的规则可以产生令人难以置信的复杂行为。